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Interface org.w3c.dom.html.HTMLCollection

public interface HTMLCollection
An HTMLCollection is a list of nodes. An individual nodemay be accessed by either ordinal index or the node'sname or id attributes. Note:Collections in the HTML DOM are assumed to be live meaningthat they are automatically updated when the underlying document ischanged.

Method Index

o getLength()
This attribute specifies the length or size of the list.
o item(int)
This method retrieves a node specified by ordinal index.
o namedItem(String)
This method retrieves a Node using a name.

Methods

o getLength 
 public abstract int getLength()
This attribute specifies the length or size of the list.

o item 
 public abstract Node item(int index)
This method retrieves a node specified by ordinal index. Nodes are numbered in tree order (depth-first traversal order).

Parameters:
index - The index of the node to be fetched. The index origin is 0.
Returns:
The Node at the corresponding position upon success. A value of null is returned if the index is out of range.
o namedItem 
 public abstract Node namedItem(String name)
This method retrieves a Node using a name. It first searches for a Node with a matching id attribute. If it doesn't find one, it then searches for a Node with a matching name attribute, but only on those elements that are allowed a name attribute.

Parameters:
name - The name of the Node to be fetched.
Returns:
The Node with a name or id attribute whose value corresponds to the specified string. Upon failure (e.g., no node with this name exists), returns null. 
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